14. callum writes down his jog times for each day.

mon – 15min tue – 10min wed – 12min

thu - 5min fri – no jog.

he jogs at a constant speed of 9km/h. work out the distance he jogs each day.

on which day did he jog the furthest? show work

Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).